High-Throughput Screening of Reductive Amination Reactions Using Desorption Electrospray Ionization Mass Spectrometry
作者:David L. Logsdon、Yangjie Li、Tiago Jose Paschoal Sobreira、Christina R. Ferreira、David H. Thompson、R. Graham Cooks
DOI:10.1021/acs.oprd.0c00230
日期:2020.9.18
screening system that is capable of screening thousands of organic reactions in a single day. This system combines a liquid handling robot with desorption electrospray ionization (DESI) mass spectrometry (MS) for a rapid reaction mixture preparation, accelerated synthesis, and automated MS analysis. A total of 3840 unique reductive amination reactions were screened to demonstrate the throughputs that are
这项研究描述了最新一代的高通量筛选系统,该系统能够在一天内筛选成千上万的有机反应。该系统将液体处理机器人与解吸电喷雾电离(DESI)质谱(MS)相结合,可快速制备反应混合物,加快合成速度并自动进行MS分析。总共筛选了3840个独特的还原胺化反应,以证明该系统具备的通量。产物,副产物和中间体均在全扫描质谱图中进行监控,从而生成反应进程的完整视图。进行串联质谱实验以验证所形成产物的身份。数据中显示的胺和亲电子反应性趋势符合理论预期,表示系统可以准确地对反应性能进行建模。DESI结果与使用更传统的质谱技术(例如液相色谱-质谱)生成的数据相关性很好,从而验证了系统生成的数据。